A microbial fermentation apparatus for fish feed production
The improved agitator design enhances the contact area between the fish feed and the inner wall of the fermenter, solving the problem of uneven heating and improving the efficiency of microbial fermentation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SULLIVAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-02
AI Technical Summary
The existing design of the stirring mechanism in fish feed microbial fermentation devices results in uneven heating, which affects the efficiency of microbial fermentation.
The design incorporates an agitator component, which uses an agitator motor to drive a toothed disc and gears to move a central agitator rod and a side agitator rod in combination, thereby enhancing the agitation effect, increasing the contact area between the fish feed and the inner wall of the fermentation tank, and achieving uniform heating.
It improves the efficiency of microbial fermentation, ensures uniform heating of fish feed ingredients, and enhances the effect of microbial fermentation.
Smart Images

Figure CN224313512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a microbial fermentation device, specifically a microbial fermentation device for fish feed production, belonging to the field of fish feed production technology. Background Technology
[0002] The production of fish feed typically involves processes such as raw material processing, ingredient mixing, microbial fermentation, and extrusion molding. Among these, the microbial fermentation process effectively breaks down and converts fish feed ingredients into glucose and amino acids through biochemical reactions, shortening the conversion chain within the animal's digestive tract. This allows for the rapid and efficient absorption and utilization of various effective components in the fish feed, thereby improving feed utilization. Simultaneously, the crude fat and organic acids produced during fish feed fermentation increase the energy content of the diet, contributing to improved fish weight gain and feed conversion ratio.
[0003] When using existing fish feed microbial fermentation equipment, the fish feed raw materials are generally put into the fermentation tank, where the raw materials are heated and stirred evenly to accelerate the fermentation of the fish feed raw materials.
[0004] A Chinese patent (publication number: CN219058952U) discloses a feed microbial fermentation device. By setting a sealed cover, the device can drive four rotating shafts and stirring blades to rotate simultaneously through the cooperation of a first motor, rotating plate, gear ring, gear, rotating shaft and stirring blades to stir the feed in the fermentation tank. In addition, with the help of electric heating tubes, the inside of the fermentation tank can be heated, thereby heating the feed during the fermentation process.
[0005] The original design used four stirring mechanisms to mix the feed in the fermentation tank. However, all four stirring mechanisms rotate around the rotating shaft, resulting in poor stirring effect. This leads to a relatively small contact area between the feed and the inner wall of the fermentation tank, causing uneven heating and affecting the fermentation efficiency of microorganisms. Therefore, a microbial fermentation device for fish feed production is proposed. Utility Model Content
[0006] In view of this, the present invention provides a microbial fermentation device for fish feed production to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.
[0007] The technical solution of this utility model embodiment is implemented as follows: a microbial fermentation device for fish feed production includes a stirring component, which includes a sealing cover, a stirring motor, a fixing ring, a turntable, a central stirring rod, two side stirring rods, a limiting sleeve, a drive gear plate, an internal gear ring, and two gears;
[0008] The stirring motor is mounted on the upper surface of the sealing cover, the fixing ring is fixedly connected to the lower surface of the sealing cover, the internal gear ring is fixedly connected to the inner side wall of the fixing ring, the two gears are symmetrically located on both sides of the drive gear disk, the outer side walls of the gears are respectively meshed with the inner side wall of the internal gear ring and the outer side wall of the drive gear disk, the turntable is rotatably connected to the bottom of the outer side wall of the fixing ring, the three limiting sleeves are equidistantly fixedly connected to the inside of the turntable, and the central stirring rod and the two side stirring rods are respectively rotatably connected to the inside of the three limiting sleeves.
[0009] More preferably, the top end of the central stirring rod is fixedly connected to the lower surface of the drive gear disk, and the drive gear disk is fixedly connected to the output shaft of the stirring motor.
[0010] More preferably, the top ends of the two side stirring rods are respectively fixedly connected to the lower surfaces of the two gears, and the two side stirring rods are symmetrically located on both sides of the central stirring rod.
[0011] More preferably, the central stirring rod is spiral-shaped.
[0012] More preferably, a fermentation tank is mounted on the lower surface of the sealing cap, and both the central stirring rod and the side stirring rod are located inside the fermentation tank.
[0013] More preferably, an electric heating wire is installed on the outer wall of the fermentation tank, and an insulation cover is installed on the outer wall of the fermentation tank, with the insulation cover located outside the electric heating wire.
[0014] More preferably, the upper part of the outer wall of the fermenter is equipped with a feed pipe and a vent pipe.
[0015] More preferably, a discharge pipe is installed on the lower surface of the fermentation tank, a valve is installed on the outer side wall of the discharge pipe, and a support frame is installed at the bottom of the fermentation tank.
[0016] The present invention has the following advantages due to the adoption of the above technical solution:
[0017] This invention uses an electric heating wire to heat the fermentation tank, and a stirring motor drives a drive gear disc to rotate. The drive gear disc drives two gears to rotate, causing the gears to rotate. Since the gears mesh with the internal gear ring, they rotate around the motor shaft of the stirring motor under the action of the internal gear ring. The gears drive the side stirring rods, and the drive gear disc drives the central stirring rod. The side stirring rods rotate around the central stirring rod while rotating. Thus, the cooperation between the side stirring rods and the central stirring rod can enhance the stirring effect on the fish feed, increase the contact area between the fish feed raw materials and the inner wall of the fermentation tank, and ensure that the fish feed raw materials are heated evenly, thus ensuring the fermentation efficiency of microorganisms.
[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a structural diagram of the present invention;
[0021] Figure 2 This is a structural diagram of the stirring component of this utility model;
[0022] Figure 3 This is a structural diagram of the central stirring rod of this utility model;
[0023] Figure 4 This is a schematic diagram showing the connection between the heat preservation cover and the fermentation tank of this utility model;
[0024] Figure 5 This is an exploded view of the structure of this utility model.
[0025] Reference numerals: 101, stirring assembly; 11, sealing cover; 12, stirring motor; 13, fixing ring; 14, turntable; 15, central stirring rod; 16, side stirring rod; 17, limiting sleeve; 18, drive gear disc; 19, internal gear ring; 20, gear; 21, fermentation tank; 22, feed pipe; 23, vent pipe; 24, discharge pipe; 25, valve; 26, support frame; 27, insulation cover; 28, heating wire. Detailed Implementation
[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.
[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0028] like Figures 1-5As shown, this utility model embodiment provides a microbial fermentation device for fish feed production, including a stirring component 101. The stirring component 101 is used to stir the fish feed raw materials, enhance the stirring effect, increase the contact area between the fish feed raw materials and the inner wall of the fermentation tank 21, so that the fish feed raw materials can be heated evenly and ensure the fermentation efficiency of microorganisms.
[0029] The stirring assembly 101 includes a sealing cover 11, a stirring motor 12, a retaining ring 13, a turntable 14, a central stirring rod 15, two side stirring rods 16, a limiting sleeve 17, a drive gear 18, an internal gear ring 19, and two gears 20.
[0030] The stirring motor 12 is mounted on the upper surface of the sealing cover 11, the fixing ring 13 is fixedly connected to the lower surface of the sealing cover 11, the internal gear ring 19 is fixedly connected to the inner side wall of the fixing ring 13, and two gears 20 are symmetrically located on both sides of the drive gear disk 18. The outer side walls of the gears 20 are respectively meshed with the inner side wall of the internal gear ring 19 and the outer side wall of the drive gear disk 18. When the stirring motor 12 works, the stirring motor 12 drives the drive gear disk 18 to rotate, and the drive gear disk 18 drives the two gears 20 to rotate through the teeth. At this time, the gears 20 rotate. Since the gears 20 mesh with the internal gear ring 19, the gears 20 rotate around the motor shaft of the stirring motor 12 under the action of the internal gear ring 19.
[0031] The turntable 14 is rotatably connected to the bottom of the outer wall of the fixed ring 13. Three limiting sleeves 17 are equidistantly fixed inside the turntable 14. The central stirring rod 15 and the two side stirring rods 16 are rotatably connected inside the three limiting sleeves 17. The positions of the central stirring rod 15 and the two side stirring rods 16 can be limited by the turntable 14 and the limiting sleeves 17. When the stirring motor 12 stirs the fish feed raw materials, the turntable 14 rotates.
[0032] In one embodiment, the top end of the central stirring rod 15 is fixedly connected to the lower surface of the drive gear disk 18, which is fixedly connected to the output shaft of the stirring motor 12. The top ends of the two side stirring rods 16 are respectively fixedly connected to the lower surfaces of the two gears 20. The two side stirring rods 16 are symmetrically located on both sides of the central stirring rod 15. The stirring motor 12 drives the drive gear disk 18 to rotate, and the gears 20 rotate around the motor shaft of the stirring motor 12. The gears 20 drive the side stirring rods 16, and the drive gear disk 18 drives the central stirring rod 15. The side stirring rods 16 rotate around the central stirring rod 15 when they rotate. Thus, through the cooperation of the side stirring rods 16 and the central stirring rod 15, the stirring effect on the fish feed can be enhanced, the contact area between the fish feed raw materials and the inner wall of the fermentation tank 21 can be increased, and the fish feed raw materials can be heated evenly to ensure the fermentation efficiency of microorganisms.
[0033] In one embodiment, the central stirring rod 15 is spiral-shaped, so that when the central stirring rod 15 rotates, it can turn over the fish feed ingredients in different positions.
[0034] In one embodiment, a fermenter 21 is mounted on the lower surface of the sealing cap 11. The central stirring rod 15 and the side stirring rod 16 are both located inside the fermenter 21. An electric heating wire 28 is mounted on the outer wall of the fermenter 21, and a heat insulation cover 27 is mounted on the outer wall of the fermenter 21. The heat insulation cover 27 is located outside the electric heating wire 28. The fermenter 21 can be heated by the electric heating wire 28 to promote the fermentation rate of microorganisms.
[0035] In one embodiment, an inlet pipe 22 and an vent pipe 23 are respectively installed on the upper part of the outer side wall of the fermentation tank 21. The inlet pipe 22 is used to feed fish feed raw materials, and the vent pipe 23 can enhance the air permeability of the fermentation tank 21 to ensure the oxygen content inside the tank. A discharge pipe 24 is installed on the lower surface of the fermentation tank 21, and a valve 25 is installed on the outer side wall of the discharge pipe 24 to control the discharge of the discharge pipe 24. A support frame 26 is installed at the bottom of the fermentation tank 21 to enhance the overall stability.
[0036] In operation, this invention works as follows: fish feed ingredients are fed into the fermentation tank 21 through the feed pipe 22. The fermentation tank 21 is heated by the heating wire 28 to promote the fermentation rate of microorganisms. The stirring motor 12 drives the drive gear plate 18 to rotate, and the drive gear plate 18 drives two gears 20 to rotate through its teeth. At this time, the gears 20 rotate on their own axis. Since the gears 20 mesh with the inner gear ring 19, the gears 20 rotate around the motor shaft of the stirring motor 12 under the action of the inner gear ring 19. The gears 20 drive the side stirring rod 16, and the drive gear plate 18 drives the central stirring rod 15. The side stirring rod 16 rotates around the central stirring rod 15 when it rotates on its own axis. Thus, through the cooperation of the side stirring rod 16 and the central stirring rod 15, the stirring effect of the fish feed can be enhanced, the contact area between the fish feed ingredients and the inner wall of the fermentation tank 21 can be increased, so that the fish feed ingredients can be heated evenly and the fermentation efficiency of microorganisms can be guaranteed.
[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A microbial fermentation device for fish feed production, comprising an agitation component (101), characterized in that: The stirring assembly (101) includes a sealing cap (11), a stirring motor (12), a fixing ring (13), a turntable (14), a central stirring rod (15), two side stirring rods (16), a limiting sleeve (17), a drive gear disc (18), an internal gear ring (19), and two gears (20). The stirring motor (12) is installed on the upper surface of the sealing cover (11), the fixing ring (13) is fixedly connected to the lower surface of the sealing cover (11), the internal gear ring (19) is fixedly connected to the inner side wall of the fixing ring (13), the two gears (20) are symmetrically located on both sides of the drive gear disk (18), the outer side walls of the gears (20) are respectively meshed with the inner side wall of the internal gear ring (19) and the outer side wall of the drive gear disk (18), the turntable (14) is rotatably connected to the bottom of the outer side wall of the fixing ring (13), the three limiting sleeves (17) are equidistantly fixedly connected to the inside of the turntable (14), the central stirring rod (15) and the two side stirring rods (16) are respectively rotatably connected to the inside of the three limiting sleeves (17).
2. The microbial fermentation equipment for fish feed production according to claim 1, characterized in that: The top end of the central stirring rod (15) is fixedly connected to the lower surface of the drive gear disk (18), and the drive gear disk (18) is fixedly connected to the output shaft of the stirring motor (12).
3. The microbial fermentation equipment for fish feed production according to claim 2, characterized in that: The top ends of the two side stirring rods (16) are respectively fixedly connected to the lower surfaces of the two gears (20), and the two side stirring rods (16) are symmetrically located on both sides of the central stirring rod (15).
4. A microbial fermentation device for fish feed production according to claim 3, characterized in that: The central stirring rod (15) is spiral-shaped.
5. A microbial fermentation device for fish feed production according to claim 1, characterized in that: The fermentation tank (21) is mounted on the lower surface of the sealing cover (11), and the central stirring rod (15) and the side stirring rod (16) are both located inside the fermentation tank (21).
6. A microbial fermentation device for fish feed production according to claim 5, characterized in that: The fermenter (21) is equipped with an electric heating wire (28) on its outer side wall and an insulation cover (27) on its outer side wall. The insulation cover (27) is located outside the electric heating wire (28).
7. A microbial fermentation device for fish feed production according to claim 6, characterized in that: The upper part of the outer wall of the fermenter (21) is equipped with a feed pipe (22) and a vent pipe (23).
8. A microbial fermentation device for fish feed production according to claim 7, characterized in that: The fermenter (21) is equipped with a discharge pipe (24) on its lower surface, a valve (25) is installed on the outer side wall of the discharge pipe (24), and a support frame (26) is installed at the bottom of the fermenter (21).